665113300 has 18 divisors (see below), whose sum is σ = 1443296078. Its totient is φ = 266045280.

The previous prime is 665113261. The next prime is 665113301. The reversal of 665113300 is 3311566.

665113300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 112487236 + 552626064 = 10606^2 + 23508^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665113301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3325467 + ... + 3325666.

Almost surely, 2^665113300 is an apocalyptic number.

It is an amenable number.

665113300 is an abundant number, since it is smaller than the sum of its proper divisors (778182778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665113300 is a wasteful number, since it uses less digits than its factorization.

665113300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651147 (or 6651140 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 665113300 is about 25789.7906156681. The cubic root of 665113300 is about 872.9014416897.

Adding to 665113300 its reverse (3311566), we get a palindrome (668424866).

The spelling of 665113300 in words is "six hundred sixty-five million, one hundred thirteen thousand, three hundred".